/Engine/Source/Runtime/Landscape/Public/LandscapeEdit.h
Void GetWeightData(FName LayerName, int32& X1, int32& Y1, int32& X2, int32& Y2, TArray* Data, int32 Stride);
void GetWeightDataFast ( [ULandscapeLayerInfoObject](API\Runtime\Landscape\ULandscapeLayerInfoObject) * LayerInfo, const int32 X1, const int32 Y1, const int32 X2, const int32 Y2, [TMap](API\Runtime\Core\Containers\TMap)< FIntPoint, [TArray](API\Runtime\Core\Containers\TArray)< uint8 >> & SparseData )